It would be D. because nothing can be 100% you can still get pregnant from all of those things.
hope i helped! :) <span />
Over the counter drugs are substances that alter the body's norml function, that are usually beneficial, and do not require a prescription to buy.
hope this helps (;
B, because having high resistance builds your endurance and makes it stronger. Having low resistance isnt effective enough so cross those out, and high resistance with high steps is too much and can lead to damage
